* {
    /* 清除默认内外边距 */
    margin: 0;
    padding: 0;
    /* 內减模式 */
    box-sizing: border-box;
}
/* 去掉列表默认样式 */
li {
    list-style: none;
}
/* 去掉链接默认下划线 */
a {
    text-decoration: none;
}
/*去掉button 默认自带的边框*/
button {
	border: none;
}
body {
	background-color: #f0f1f4;
}
.w {
    width: 1200px;
    margin: auto;
}
.header {
    height: 41px;
 
    margin-top: 30px;
    margin-bottom: 30px;
}
.logo img {
    float: left;
    margin-left: 200px;
    padding-bottom: 20px;
}
.nav {
    float: left;
    margin-left:10px;
}
.nav ul li {
    float: left;
    margin-right: 30px;
    
}
.nav ul li a {
    display: block;
    padding: 10px 12px;
    color: #050505;
    font-size: 18px;
}
.nav ul li a:hover {
    border-bottom: 2px solid #00a4ff;
}
.search {
    float: left;
    margin-left: 100px;
}
.search input {
    float: left;
    width: 500px;
    height: 40px;
    border:1px solid #00a4ff;
    padding-left: 21px;
}
.user {
    float: left;
    margin-left: 20px;
    padding-top: 5px;
}
.user img {
    float: left;
    margin-right: 5px;
    padding-bottom: 10px;
}
.banner {
    height: 420px;
}
.tag {
    height: 60px;
    background-color: #fff;
    margin-top: 8px;
    line-height: 60px;
    box-shadow: 2px 2px 2px rgba(0,0,0,.2);
}
.tag h3 {
    float: left;
    font-size: 16px;
    color:#00a4ff;
    margin: 0 30px;
}
.goods-item {
    float: left;
}
.goods-item a {
    color: #050505;
    font-size: 16px;
    border-left: 1px solid #ccc;
    padding: 0 30px;
}
.mod {
    float: right;
    margin-right: 26px;
    font-size: 14px;
    color: #00a4ff;
}
.floorhd {
    height: 40px;
    margin-top: 40px;
}
.floorhd h3 {
    float: left;
    font-size: 20px;
    color: #494949;
    font-weight: 400;
}
.floorhd .more {
    float: right;
    margin: 8px 25px 0 0;
    font-size: 12px;
    color: #a5a5a5;
}

.reco-inner li {
    float: left;
    width: 228px;
    height: 270px;
    background-color: #fff;
    margin-right: 15px;
    margin-bottom: 15px;
}
.reco-inner li:nth-child(5n) {
    margin-right: 0;
}
.reco-inner li h4 {
    color: #050505;
    font-size: 14px;
    font-weight: 400;
    margin: 25px 20px 12px;
}

.reco-inner li p {
    font-size: 15px;
    color: #999;
    margin-left: 20px;
}
.reco-inner li p span {
    color: #ff7c2d;
}
.floorhd ul {
    float: left;
    margin-left: 350px;
}
.floorhd ul li {
    float: left;
    margin-right: 70px;
}
.floorhd ul li a {
    color: #868686;
    font-size: 16px;
}
.footer {
    height: 417px;
    margin-top: 20px;
    padding-top: 30px;
}
.footer-l {
    float: left;
     padding-left: 20px; 
}
.footer-l p {
    font-size: 12px;
    color: #666;
    line-height: 18px;
    margin: 25px 0 15px;
}
.download {
    display:block;
    width: 120px;
    height: 36px;
    border: 1px solid #00a4ff;
    text-align: center;
    line-height: 36px;
    color: #00a4ff;
    font-weight: 700;
}

.footer-r {
    float: right;
}
.footer-r dl {
    float: left;
    width: 200px;
}
.footer-r dl dt {
    height: 30px;
    color: #333;
}
.footer-r dl dd {
    height: 22px;
}
.footer-r dl dd a {
    font-size: 12px;
    color: #333;
}

.wrap {
    width: 1200px;
    height: 420px;
    margin: 0 auto;
    position: relative;
    background-color: orange;
    background-position: center center;
    background-size: cover;
   float: left;
}

.arraw {
    width: 30px;
    height: 30px;
    background-color: rgba(0, 0, 0, .7);
    color: #fff;
    text-align: center;
    position: absolute;
    line-height: 30px;
    top: 160px;
    border-radius: 50%;
    float: left;
}

.prev {
    left: -30px;

}

.prev:hover {
    cursor: pointer;

}

.next {
    right: -30px;

}

.next:hover {
    cursor: pointer;

}

.dots {
    position: absolute;
    width: 160px;
    height: 20px;
    background-color: rgba(0, 0, 0, .7);
    bottom: 5px;
    left: 550px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-radius: 5px;
}

.dot {
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, .7);
    border-radius: 50%;
}

.dot:hover {
    cursor: pointer;
}

.now {
    background-color: #fff;
}

.tool {
    position: fixed;
    top: 80px;
    right: 10px;
    width: 50px;
    text-align: center;
    z-index: 10;
  }
  .tool a {
    position: relative;
    display: block;
    font-size: 13px;
    height: 44px;
    line-height: 17px;
    background-color: #fff;
    padding: 8px 8px 0;
    cursor: pointer;
  }
  .tool a::after {
    content: "";
    position: absolute;
    left: 8px;
    bottom: -1px;
    width: 34px;
    border-bottom: 1px solid #efefef;
    z-index: 5;
  }
  .tool a.on,
  .tool a:hover {
    background-color: #e63e3e;
    color: #fff;
    z-index: 6;
  }
  a.tool-item1 {
    color: #e63e3e;
  }
  a.tool-item2 {
    color: #28abff;
  }
  a.tool-item3 {
    color: #ff9f00;
  }
  a.tool-item5 {
    line-height: 40px;
  }
  
  .top-arrow {
    display: block;
    width: 6px;
    height: 6px;
    border-top: 1.5px solid #999;
    border-left: 1.5px solid #999;
    transform: rotate(45deg);
    margin: 5px auto;
  }
  .tool a:hover .top-arrow {
    border-color: #fff;
  }
  
  #goTop {
    display: none;
  }